123259780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{880427}}^1$

素因数の和:880443

約数の個数: 24

約数和(自身を含む): 295823808

約数和(自身を除く): 172564028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 880427, 1760854, 3521708, 4402135, 6162989, 8804270, 12325978, 17608540, 24651956, 30814945, 61629890, 123259780]

約数ペア:

[(1, 123259780), (2, 61629890), (4, 30814945), (5, 24651956), (7, 17608540), (10, 12325978), (14, 8804270), (20, 6162989), (28, 4402135), (35, 3521708), (70, 1760854), (140, 880427)]